There were 695 overdose cases through the first month of 2017 — a 33 percent increase from last year.

A surge in fentanyl-laced heroin is credited with many drug overdose cases.

No appointments are necessary for Monday’s training, and participants will be given and shown how to use a free Naloxone kit. Naloxone is considered an overdose antidote. The training will begin at 11 a.m. at 400 East Gray Street.